Which of the following is a disadvantage of a controlled experiment

A. It is a repeat.

B. The results are more valid.

C. It does not replicate real world conditions.

D. The effect of the variable is apparent

If your front lawn is 18.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1050 new snowflakes every minute, how much snow, in kilograms, accumulates on your lawn per hour? Assume an average snowflake has a mass of 2.10 mg.

A person began running due east and covered 15 km in 2.0 hr. What is the average velocity of the person?

A push on a textbook with 10 N moves it to a distance of 2 cm. How much force is need to move it to 4 cm?

The speed of a wave depends upon: A. The wavelength of the wave B. The amplitude of the wave C. None of the above D. The property of the medium through which the wave is traveling

A 62 pound box is on an incline. Determine the minimum force P that would result in the box starting to slide up the incline. (include units with answer)

If a spacecraft that seems to be motionless in deep space is given some type of quick push, what will happen? A. The spacecraft will not move because it only works on earth. B.

A fast, white water cascade is also known as what?

What is a stack of membranes that packages chemicals

Under what condition (s) will an object be in equilibrium? Notice that equilibrium in physics has a broader definition. (A) Only if it is moving with constant velocity. (B) Only if it is at rest.

If a pressure gauge measure an increase in 3*10^ (5) Pa on an area of 0.7 m^2, calculate the increase in the force applied to the area?